I live in Latin America and I feel the same. It's important to pick your facilitator and shaman carefully. There are the yoga instructor turned shaman types that it's best to avoid.

There are also the "passing through want to try it" attendees.

However, given the power of this substance to have a positive effect on someone's life, I'm not going to build walls around it. Also, it's a very challenging experience and anyone that goes through it deserves a bit of respect.